"Books are mirrors, but they are also windows."
书籍是镜子，但它们也是窗户。
The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.
If you want to fly, you have to give up what weighs you down.
世界是一片伟大的海洋，我们是其中的水手。
The mind is an instrument of survival before it is an instrument of thought.
我是一个永远解决不了的问题。
晏子春秋